Method for fabrication of a semiconductor device and structure
First Claim
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1. A method of manufacturing a semiconductor wafer, the method comprising:
- providing a base wafer comprising a semiconductor substrate, metal layers and first alignment marks;
transferring a monocrystalline layer on top of said metal layers, wherein said monocrystalline layer comprises second alignment marks; and
performing a lithography using at least one of said first alignment marks in a first direction and at least one of said second alignment marks in a second direction.
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Abstract
A method of manufacturing a semiconductor wafer, the method including: providing a base wafer including a semiconductor substrate, metal layers and first alignment marks; transferring a monocrystalline layer on top of the metal layers, wherein the monocrystalline layer includes second alignment marks; and performing a lithography using at least one of the first alignment marks in a first direction and at least one of the second alignment marks in a second direction.
140 Citations
20 Claims
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1. A method of manufacturing a semiconductor wafer, the method comprising:
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providing a base wafer comprising a semiconductor substrate, metal layers and first alignment marks; transferring a monocrystalline layer on top of said metal layers, wherein said monocrystalline layer comprises second alignment marks; and performing a lithography using at least one of said first alignment marks in a first direction and at least one of said second alignment marks in a second direction. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of manufacturing a semiconductor wafer, the method comprising:
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providing a base wafer comprising a semiconductor substrate, metal layers, and first alignment marks; preparing a monocrystalline layer comprising semiconductor regions comprising transistors, and second alignment marks; performing layer transfer of said monocrystalline layer on top of said metal layers; and performing gate replacement to at least one of said transistors. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method of manufacturing a semiconductor wafer, the method comprising:
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providing a base wafer comprising a semiconductor substrate, metal layers, and first alignment marks; preparing a monocrystalline layer comprising semiconductor regions, and second alignment marks; performing layer transfer of said monocrystalline layer, first to a carrier and then on top of said metal layers; and performing gate replacement in said monocrystalline layer. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification